Dwyer 1910-5 Compact Low Differential Pressure Switch, RANGE 1.40-5.5" W.C.

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Dwyer 1910-5 Compact Low Differential Pressure Switch, RANGE 1.40-5.5" W.C. Specification

Function
Differential pressure sensing

Thread size
1/8 inch NPT Female

Max Pressure
20 psi (1.38 bar)

Working Temperature
-40C to 85C

Mechanical Life
Over 1 million cycles

Product Type
Compact Low Differential Pressure Switch

Max. Current
15 A @ 125/250 VAC (Resistive)

Max. Voltage
480 VAC

Protection Class
NEMA 3/IP54

Pressure Range
1.4 - 5.5 W.C. (Water Column)

Application
Air and non-combustible gas flow monitoring, air filter monitoring, duct static pressure, fan control, damper control

Output Signal
SPDT Snap switch

Size
3-1/4 inch (Diameter)

Color
Silver (Metallic)

Weight
Approximately 340 g

Dwyer 1910-5 Compact Low Differential Pressure Switch, RANGE 1.40-5.5" W.C. Trade Information

Payment Terms
Cash on Delivery (COD), Cash Advance (CA), Cash Against Delivery (CAD), Cash in Advance (CID), Cheque

Main Export Market(s)
Australia, South America, Middle East, Western Europe, Africa, Central America, Asia, Eastern Europe, North America

Main Domestic Market
All India

About Dwyer 1910-5 Compact Low Differential Pressure Switch, RANGE 1.40-5.5" W.C.

Dwyer 1910-5 Compact Low Differential Pressure Switch.

RANGE 1.40-5.5" W.C.

DESCRIPTION

Most popular SERIES 1900 combines advanced design and precision construction to make these switches able to perform many of the tasks of larger, costlier units. Designed for air conditioning service, they also serve many fluidics, refrigeration, oven and dryer applications. Series 1900 switches have set points from 0.07 to 20" w.c. (1.8 to 508 mm). Set point adjustment is easy with range screw located inside conduit enclosure. Internal location helps prevent tampering.

Compact size and repeatability, provides a high-value switch for many industrial and OEM applications.

Range screw protected inside enclosure provides simplifies making adjustments but prevents tampering.

MANUFACTURER	Dwyer
PART NUMBER	1910-5
SHORT DESCRIPTION	1910-5 - SPDT Compact Low Differential Pressure Switch with Conduit, Range 1.40-5.5" w.c., 1/8" FNPT, Conduit Enclosure
PRODUCT SERIES	1900 Series
NOMINAL OR PRIMARY VOLTAGE	120-277 VAC
AMPERAGE RATING	15A
SET POINT/SET POINT RANGE	1.40-5.5" w.c.
INPUT(S)	Resistive 1/8 HP at 125 VAC, 1/4 HP at 250 VAC
CONTACT	SPDT
CONNECTION	Process Connection: 1/8" FNPT; Electrical Connection: 3 Screw Type, Common, Normally Open and Normally Closed
PRESSURE RANGE	45" w.c. (11.2 kPa) Continuous; 10 psig (68.95 kPa) Surge
MAX TEMPERATURE	-30 to 180F
FREQUENCY	60 Hz
APPLICATIONS	For Air Conditioning Refrigeration Coil Icing Detection, Defrost Cycle Intiation, Clogged Filter Detection, Variable Air Volume Controller, Air and Non-Combustible, Compatible Gases
STANDARDS/APPROVALS	CE Approved, CSA, FM, UL, RoHS Complaint
ADDITIONAL PRODUCTS OR REQUIREMENTS	A-399, A-329, A-489, A-302F-A

Highly Sensitive Differential Pressure Detection

The Dwyer 1910-5 enables precise measurement and fast switching for low air pressure differentials. Thanks to its 2% repeatability and silicone rubber diaphragm, it ensures consistent and reliable operation. Its immediate response time makes it suitable for rapid control applications in HVAC and process industries.

Built for Durability and Easy Installation

The switch features a rugged, die-cast aluminum housing protected to NEMA 3/IP54 standards, resilient in demanding environments. With universal mounting brackets and 1/8" NPT female connections, installation is flexible and simple, catering to new setups and retrofits alike.

User-Friendly Adjustment and Broad Compatibility

External screw set point adjustment allows for quick and convenient sensitivity tuning. The switch is intended for use with air and other compatible non-combustible gases, making it effective across a range of air pressure monitoring tasks.

FAQs of Dwyer 1910-5 Compact Low Differential Pressure Switch, RANGE 1.40-5.5" W.C.:

Q: How do I adjust the pressure set point on the Dwyer 1910-5?

A: You can adjust the set point externally using the screw adjustment feature provided on the housing, allowing for precise calibration between 1.4 and 5.5" W.C. without disassembling the unit.

Q: What types of gases are suitable for use with this pressure switch?

A: The Dwyer 1910-5 is designed for monitoring air and compatible non-combustible gases, making it suitable for applications like air filter monitoring, duct pressure measurement, and general air flow control.

Q: When is it appropriate to use the Dwyer 1910-5 in HVAC applications?

A: This pressure switch is ideal for applications such as monitoring duct static pressure, controlling fans and dampers, and ensuring air filters are functioning efficiently in commercial and industrial HVAC systems.

Q: Where can the Dwyer 1910-5 be installed?

A: With universal mounting brackets and a compact diameter of 3-1/4 inches, the pressure switch can be installed in ducts, panels, or machinery in a wide variety of settings across industrial and commercial facilities.

Q: What is the expected mechanical lifespan of the pressure switch?

A: The Dwyer 1910-5 boasts a mechanical life of over one million cycles, ensuring long-term reliability and minimal maintenance during operation.

Q: What are the benefits of the SPDT snap switch output?

A: The Single-Pole Double-Throw (SPDT) snap switch provides electrical versatility, allowing the unit to control or signal different devices immediately upon threshold exceedance, supporting complex system configurations.

Q: Is the Dwyer 1910-5 resistant to harsh environmental conditions?

A: Yes, the die-cast aluminum housing provides IP54/NEMA 3 protection, making the switch suitable for outdoor or demanding indoor environments with exposure to dust and moisture.

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